Multiple PHP Versions include in release

In connection with the new linux distributions support for several versions of php(add-apt-repository ppa:ondrej/php), I suggest adding the currently supported ispconfig to the standard installation
PHP 5.6 / 7.0 / 7.1 / 7.2 / 7.3
Updates are made from repositories, the installation on different OS is almost the same.
I'm not talking about make in / opt
Only about fully supported several versions of php.
The remaining versions of php will be still unchanged.